HELLER ROBERT W

Related Filers (3)

Ownership (12)

4
Wednesday, 5/18/2011
ELECTRO SENSORS INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/2/2008
PPT VISION INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 12/18/2007
ELECTRO SENSORS INC: Statement of changes in beneficial ownership of securities
3
Monday, 6/11/2007
ELECTRO SENSORS INC: Initial statement of beneficial ownership of securities
4
Monday, 6/11/2007
ELECTRO SENSORS INC: Statement of changes in beneficial ownership of securities
4/A
Monday, 3/12/2007
HEI INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/7/2007
HEI INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/1/2006
PPT VISION INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/22/2006
HEI INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 1/17/2006
PPT VISION INC: Statement of changes in beneficial ownership of securities
3
Friday, 3/4/2005
HEI INC: Initial statement of beneficial ownership of securities
4
Wednesday, 7/2/2003
PPT VISION INC: Statement of changes in beneficial ownership of securities
Show More